The forum has been upgraded to the latest version of phpBB 3.2.
Note that if you were not using the default style then it will be reset to 'prosilver'.
Unfortunately 'subsilver2' is no longer supported by phpBB 3.2.

The new version of phpBB has some nice new features.

Responsive Theme
The default style, prosilver, has been completely overhauled to ensure a modern experience on all of your devices. Give it a try on a tablet or smart-phone

Improved Navigation
Redesigned and laid out to provide better UX/UI. The addition of menus to group similar functionality. Improved consistency across the design. Completely reworked buttons leveraging CSS rather than images.

HTML5 & CSS3 Enhancements
phpbb is using the HTML5 doctype and CSS3 to modernize the codebase, reduce the number of requests made to the server, and speed up page load times

AJAX
Traditionally with phpBB, even simple operations like deleting a post or reordering forums have involved multiple requests and full page loads, which was slow and heavy on bandwidth. phpbb has added AJAX functionality to a lot of these simple operations, making them faster and easier to do.

Gravatar Support
Avatars may now be fetched from the Gravatar service, in addition to the previously available options.

Notification System
Easily configure how you prefer to be notified about various events, such as when you are quoted in a post. The new extensible notifications feature lives in the header of every page and provides a centralized place to receive alerts and other information.

Contact Page
Visitors, including guests, can now get in touch with the board administrator by using the built-in contact page

Soft Delete
Posts and topics can now be removed from public view without being permanently deleted. You can determine this behaviour per user or group.

Improved security

Emoji!
Thanks to the brand-new BBCode parser, users can now make use of the entire Emoji keyboard when posting on the board. From a lovely grin to a pink unicorn, Emoji can liven up all posts on the forum!

PHP 7 Support
PHP 7 works twice as fast as previous PHP versions. phpBB has been modified to now completely support this new release of PHP (both 7.0 and 7.1) so you can enjoy all these performance advantages.

Clever Quotes
phpbb improved the quoting system to show a link to the quoted post and post author. The full time and date of the quoted post is now also available to get all the information in one glance.

reCAPTCHA 2.0
phpBB 3.2 now includes the industry standard by using Google's newest and strongest API, the forum will have an even better protection against spambots than before.

FontAwesome Icons
Using CSS driven icons from FontAwesome, the forum now have more intuitive icons with retina quality all across phpBB as well as considerably improving the speed of page loads.